Pith Number

pith:OGZLHNUR

pith:2026:OGZLHNURTYEF2GKLCX47BDMA6Z

not attested not anchored not stored refs pending

Beyond Augmented-Action Surrogates for Multi-Expert Learning-to-Defer

Axel Carlier, Lai Xing Ng, Wei Tsang Ooi, Yannis Montreuil

A decoupled surrogate for multi-expert deferral separates class posteriors from expert utilities to eliminate gradient pathologies.

arxiv:2604.09414 v3 · 2026-04-10 · stat.ML · cs.LG

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\usepackage{pith}
\pithnumber{OGZLHNURTYEF2GKLCX47BDMA6Z}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

The decoupled surrogate is the only method that avoids amplification under redundancy, preserves rare specialists, and consistently improves over a standalone classifier across all settings.

C2weakest assumption

That separating class posterior estimation (softmax) from expert utility estimation (independent sigmoids) removes the amplification, starvation, and coupling pathologies without introducing new failure modes under realistic expert correlation structures.

C3one line summary

A decoupled surrogate separates class posterior estimation from per-expert utility estimation, yielding a J-independent H-consistency bound and avoiding the amplification, starvation, and coupling issues of prior augmented-action surrogates.

Cited by

1 paper in Pith

Online Learning-to-Defer with Varying Experts

Receipt and verification

First computed	2026-05-21T01:05:18.754410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71b2b3b6919e085d194b15f9f08d80f6479e6192cd5cfd3757ee179d56986a4f

Aliases

arxiv: 2604.09414 · arxiv_version: 2604.09414v3 · doi: 10.48550/arxiv.2604.09414 · pith_short_12: OGZLHNURTYEF · pith_short_16: OGZLHNURTYEF2GKL · pith_short_8: OGZLHNUR

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OGZLHNURTYEF2GKLCX47BDMA6Z \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 71b2b3b6919e085d194b15f9f08d80f6479e6192cd5cfd3757ee179d56986a4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e3effd8e43beae8df323db019730c924c99af1ecc353a6751b8328185d08c8a",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-04-10T15:27:23Z",
    "title_canon_sha256": "83f2b28c8f52052fc2db313cd65d563c2e06a269909b5cae66d090668fd80fd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.09414",
    "kind": "arxiv",
    "version": 3
  }
}